US6789770B2 - Device for locking the end positions of moving points components - Google Patents

Device for locking the end positions of moving points components Download PDF

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Publication number
US6789770B2
US6789770B2 US10/250,636 US25063603A US6789770B2 US 6789770 B2 US6789770 B2 US 6789770B2 US 25063603 A US25063603 A US 25063603A US 6789770 B2 US6789770 B2 US 6789770B2
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US
United States
Prior art keywords
tube
axially displaceable
outer tube
tube part
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/250,636
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English (en)
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US20040069911A1 (en
Inventor
Karl Schnedl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine Turnout Technology Zeltweg GmbH
Voestalpine Railway Systems GmbH
Original Assignee
Voestalpine VAE GmbH
Voestalpine Weichensysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voestalpine VAE GmbH, Voestalpine Weichensysteme GmbH filed Critical Voestalpine VAE GmbH
Assigned to VAE GMBH, VAE EISENBAHNSYSTEME GMBH reassignment VAE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHNEDL, KARL
Publication of US20040069911A1 publication Critical patent/US20040069911A1/en
Application granted granted Critical
Publication of US6789770B2 publication Critical patent/US6789770B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points

Definitions

  • the invention relates to a device for locking the end positions of movable switch parts and, in particular, the movable point of a frog, in which two relatively axially displaceable parts are capable of being displaced into a position coupled with each other in a positive manner in at least one direction of movement, wherein the relatively displaceable parts are comprised of a tube and a rod guided within the tube and are at least partially arranged in a stationary outer tube, whereby locking members cooperate with the relatively axially displaceable parts as well as the outer tube and are capable of being displaced in the radial direction into a locking position in a recess or inner annular groove of the outer tube.
  • the locking device known from EP 603 156 was improved to the effect that the balls are encompassed by an expandable ring or a ring comprised of segments. This measure aims to reduce the wear of the balls otherwise taking up the high locking forces via point contacts, since the accordingly high load can now be taken up by the annular segments or the expandable ring.
  • switching aids comprise an axially displaceable rod and a tube surrounding the rod, in which a spring surrounding the rod is braced against stops and radially outwardly displaceably locking members are arranged, the rod including, in an axially spaced-apart manner, control stops for the radially internal position of the locking members and the tube including stops for the external position of the locking members. Departing from such switching aids, it was proposed, for instance, in wo 00/69697 to fix at least one of the control stops to the rod in a manner displaceable in the axial direction of the rod.
  • the adjustment of a movable point of a frog calls for the observance of highly precise displacement paths, since in this case the adjustment is not effected between a closed and an open position, but both end positions of the displacement path constitute closed or abutment positions. Abutment in this case must be effected in a particularly precise manner, since it is usually required that a maximum gaping of the frog point in the abutment position of only 3 mm be admissible.
  • the invention therefore, aims to improve a device of the initially defined kind with a view to precisely adjusting the displacement stroke and enabling precise locking of the end position.
  • the device is to be particularly suitable for the locking of an end position of the movable point of a frog and, at the same time, readily adaptable to the distance at which the locking device is coupled to the movable frog from the frog point, and hence the necessary displacement path.
  • the configuration according to the invention essentially consists in that the outer tube is comprised of two tube parts capable of being axially displaced within each other, and that each tube part carries at least one recess or inner annular groove.
  • the arrangement of the recesses or inner annular groove engaged by the locking members in the displaced end position on two outer tube parts capable of being axially displaced within each other provides the prerequisite for the axial displacement of the locking grooves in order to thereby adjust the displacement stroke between the two end positions corresponding to the abutment position of the movable frog. Such an adjustment will be necessary, in particular, where one and the same locking device is coupled to the movable frog at different distances from the frog point.
  • the tube parts are each provided with a thread and capable of being screwed into each other, it being preferred that one tube part is designed as a stationary or rotationally fast inner tube and the other tube part is designed as an outer tube capable of being axially displaced by rotation and fixed in a rotary position.
  • One of the tube parts can, thus, be displaced axially relative to the other tube part by simple rotation, extremely precise adjustment of the displacement stroke being feasible by transforming the rotary movement into an axial displacement of the tube part.
  • the configuration in a preferred manner is further developed such that the axially displaceable outer tube comprises recesses for the engagement of a tool intended to rotate the axially displaceable outer tube.
  • the configuration in a preferred manner is devised such that the axially displaceable outer tube cooperates with a flange tube and is braceable between the flange tube and the stationary or rotationally fast inner tube, wherein, furthermore, the flange tube carries an internal thread and is capable of being screwed onto an external thread of the axially displaceable outer tube.
  • the axial bracing of the two tube parts offers the advantage of achieving an extremely compact mode of construction while, at the same time, rendering the arrangement of radially extending pins superfluous for the securement of the respective rotary position of the outer tube parts.
  • the locking device is to constitute a compact and self-contained structural unit after the works-side adjustment of the respective displacement stroke, wherein it is particularly sought that no parts readily accessible from outside be provided, which would enable an alteration of the displacement stroke adjusted by the manufacturer.
  • the configuration is devised such that at least one screw connection is provided for the fixation of the rotary position.
  • the configuration advantageously is further developed such that adjustable cheek bridges or a spacer sleeve are arranged in the clear cross section between the outer circumference of the tube and the inner circumference of the axially displaceable outer tube.
  • the use of cheek bridges has the advantage of enabling the continuous adjustment of the displacement stroke, whereas the use of spacer sleeves merely allows for stepwise adjustment.
  • the configuration preferably is further developed in a manner that the locking members are formed by balls which are encompassed by an expandable ring or a ring comprised of segments, that the segments or the ring, respectively, are/is resiliently held in a position with an outer diameter smaller than, or equal to, the outer diameter of the axially displaceable tube guided within the outer tube, and reach(es) into a peripheral groove of the tube, and that the balls are arranged in tube holes provided between the rod and the ring comprised of segments.
  • FIG. 1 illustrates a conventional locking device with an invariable displacement course
  • FIG. 2 is a partial view of the locking device according to the invention with a variable displacement course
  • FIG. 3 is a section along line III—III of FIG. 2 .
  • FIG. 1 depicts a movable frog 1 , which is to be facultatively displaced into abutment on two guardrails 2 and locked in the respective abutment position.
  • the device for adjusting the position of the frog 1 and locking the respective end position is denoted by 3 and comprises an outer tube 4 , an inner tube 5 guided within said outer tube, and a rod 6 .
  • the internally arranged tube 5 includes openings 7 for the reception of locking or coupling members 8 , the inwardly located rod 6 having appropriate stop shoulders 9 for coupling with said coupling and locking members 8 .
  • the device 3 is stationarily fixed to the ends schematically indicated by 10 .
  • a hydraulic connection 11 running into a working volume 12 is apparent, the respective connections being symmetrically provided in the representation according to FIG. 1 .
  • the frog 1 is displaced in its right-side end position, wherein the locking members 8 engage in respective locking grooves of the externally arranged tube 4 by running onto the respective full cross section of the rod 6 , thus causing the internally arranged tube 5 to be secured against further displacement and the frog 1 to be safely held in the abutment position.
  • the locking groove 15 in this case corresponds to the right-hand end position of the movable frog shown in FIG.
  • the outer tube 4 is comprised of two tube parts, one tube part 17 being designed as a stationary or rotationally fast inner tube and the other tube part 18 being designed as an outer tube capable of being axially displaced by rotation.
  • the respective thread by which the two tube parts 17 and 18 can be screwed one into the other is denoted by 19 .
  • the tube part 18 carries the locking groove 15 for the right-side abutment and the tube part 17 carries the locking groove 16 for the left-side abutment.
  • the tube part 18 is displaced by engagement of an appropriate tool in the recesses 20 and rotation in the axial direction.
  • FIG. 2 furthermore, depicts a flange tube 21 , which is connected with the tube part 18 via a thread 22 .
  • the flange tube 21 and the inner tube 17 are secured against rotation by a torque-supporting element 23 .
  • the flange tube 21 as well as the tube part 18 can be braced against the tube part 17 by means of the turning screw 25 . In doing so, the tube part 17 bears against an end face 24 of the articulated head 26 so as to form a rigid unit of the tube parts 17 and 18 .
  • a free space 27 is present between the tube part 18 and the inner tube 3 , which free space, according to the invention, is covered by adjustable cheek bridges 28 and 29 .
  • the cheek bridges 28 and 29 are slidably movable within each other with their axial entrainment being safeguarded by the screw 30 .
  • the cheek bridges 28 and 29 are formed with mutually engaging fingers-so as to be able to slide within each other in the axial direction. This ensures the complete coverage of the clear cross section 27 even at a continuous adjustment of the displacement stroke of the locking device.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Prostheses (AREA)
  • Tumbler Switches (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Automatic Assembly (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Push-Button Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Lock And Its Accessories (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Paper (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
US10/250,636 2001-01-11 2002-01-11 Device for locking the end positions of moving points components Expired - Fee Related US6789770B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0003901A AT411047B (de) 2001-01-11 2001-01-11 Einrichtung zum verriegeln der endlagen von beweglichen weichenteilen
ATA39/2001 2001-01-11
AT39/2001 2001-01-11
PCT/AT2002/000008 WO2002055361A1 (de) 2001-01-11 2002-01-11 Einrichtung zum verriegeln der endlagen von beweglichen weichenteilen

Publications (2)

Publication Number Publication Date
US20040069911A1 US20040069911A1 (en) 2004-04-15
US6789770B2 true US6789770B2 (en) 2004-09-14

Family

ID=3557225

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/250,636 Expired - Fee Related US6789770B2 (en) 2001-01-11 2002-01-11 Device for locking the end positions of moving points components

Country Status (15)

Country Link
US (1) US6789770B2 (da)
EP (1) EP1349764B1 (da)
JP (1) JP3862656B2 (da)
CN (1) CN1250418C (da)
AT (2) AT411047B (da)
BR (1) BR0206359A (da)
CA (1) CA2434392C (da)
CZ (1) CZ293468B6 (da)
DE (1) DE50209584D1 (da)
DK (1) DK1349764T3 (da)
ES (1) ES2282402T3 (da)
HU (1) HUP0401164A2 (da)
PL (1) PL201090B1 (da)
PT (1) PT1349764E (da)
WO (1) WO2002055361A1 (da)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040240936A1 (en) * 2001-08-02 2004-12-02 Karl Schnedl Device for locking the final positions of moving switch points
US20050269459A1 (en) * 2002-08-13 2005-12-08 Vae Gmbh Point machine for movable frogs
US20120068022A1 (en) * 2010-09-16 2012-03-22 Chadda Iqbal Mechanical lock
US20180346002A1 (en) * 2015-11-24 2018-12-06 Siemens Ltd. Point machine and switch with snap-action and method of operating said point machine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7341226B2 (en) 2004-11-17 2008-03-11 General Electric Company Movable point frog switching assembly
ES1072245Y (es) * 2010-04-09 2010-09-09 Amurrio Ferrocarril Y Equipos Dispositivo de encerrojamiento para corazon de punta movil
DE202010005519U1 (de) * 2010-05-28 2011-10-05 Hanning & Kahl Gmbh & Co. Kg Verschluss für Weichenstellvorrichtungen
GB2483691B (en) * 2010-09-16 2015-07-01 Spx Internat Ltd Mechanical lock for Railway points
PL2960134T3 (pl) * 2011-08-30 2020-11-16 Alstom Transport Technologies Urządzenie przełączające do zwrotnic kolejowych i tramwajowych lub podobnych
CZ25802U1 (cs) * 2012-12-13 2013-08-27 DT-VÝHYBKÁRNA A STROJÍRNA, a.s. Dvoustranný stabilizátor
EP3439939B1 (de) * 2016-03-07 2021-01-20 Wolber Antriebstechnik GmbH Verriegelungseinrichtung an zwei relativ zu einander an einer führungsbahn gleitend beweglichen körpern
EP3835168A1 (en) * 2019-12-11 2021-06-16 ALSTOM Transport Technologies Railway switch machine with adjustable stroke

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603156A1 (de) 1992-12-17 1994-06-22 VAE Aktiengesellschaft Einrichtung zum Verriegeln von beweglichen Weichenteilen
US5566912A (en) * 1994-05-16 1996-10-22 Vae Aktiengesellschaft Device for locking of movable switch parts
AT403683B (de) 1996-01-11 1998-04-27 Vae Ag Umstellvorrichtung für stellantriebe von schienenweichen oder schienenkreuzungen
WO1998054041A1 (de) 1997-05-27 1998-12-03 Vae Aktiengesellschaft Einrichtung zum verriegeln der endlagen von beweglichen weichenteilen
WO1999030951A1 (de) 1997-12-17 1999-06-24 Vae Aktiengesellschaft Einrichtung zum unterstützen der verschiebebewegung und zum elastischen verriegeln von beweglichen weichenteilen
WO2000069697A1 (de) 1999-05-14 2000-11-23 Vae Aktiengesellschaft Einrichtung zum verstellen und zum elastischen verriegeln von beweglichen weichenteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118008U (da) * 1974-07-26 1976-02-09
FR2623461B1 (fr) * 1987-11-23 1990-03-02 Alsthom Dispositif de motorisation d'un aiguillage
JPH0589501U (ja) * 1991-05-16 1993-12-07 吉原鉄道工業株式会社 転てつ器のスイッチアジャスターにおける軌条密着力調 節装置
JP3004331U (ja) * 1994-02-21 1994-11-15 吉原鉄道工業株式会社 転てつ器操作部材の調整装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603156A1 (de) 1992-12-17 1994-06-22 VAE Aktiengesellschaft Einrichtung zum Verriegeln von beweglichen Weichenteilen
US5566912A (en) * 1994-05-16 1996-10-22 Vae Aktiengesellschaft Device for locking of movable switch parts
AT403683B (de) 1996-01-11 1998-04-27 Vae Ag Umstellvorrichtung für stellantriebe von schienenweichen oder schienenkreuzungen
WO1998054041A1 (de) 1997-05-27 1998-12-03 Vae Aktiengesellschaft Einrichtung zum verriegeln der endlagen von beweglichen weichenteilen
US6354541B1 (en) * 1997-05-27 2002-03-12 Vae Aktiengesellschaft Device for locking end positions of mobile switch parts
WO1999030951A1 (de) 1997-12-17 1999-06-24 Vae Aktiengesellschaft Einrichtung zum unterstützen der verschiebebewegung und zum elastischen verriegeln von beweglichen weichenteilen
AT406038B (de) 1997-12-17 2000-01-25 Vae Ag Einrichtung zum unterstützen der verschiebebewegung und zum elastischen verriegeln von beweglichen weichenteilen
WO2000069697A1 (de) 1999-05-14 2000-11-23 Vae Aktiengesellschaft Einrichtung zum verstellen und zum elastischen verriegeln von beweglichen weichenteilen
US6666412B1 (en) * 1999-05-14 2003-12-23 Vae Aktiengesellschaft Device for adjusting and elastically locking moveable switch parts

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040240936A1 (en) * 2001-08-02 2004-12-02 Karl Schnedl Device for locking the final positions of moving switch points
US7674065B2 (en) * 2001-08-02 2010-03-09 Vae Eisenbahnsysteme Gmbh Device for locking the final positions of moving switch points
US20050269459A1 (en) * 2002-08-13 2005-12-08 Vae Gmbh Point machine for movable frogs
US7168663B2 (en) * 2002-08-13 2007-01-30 Vae Eisenbahnsysteme Gmbh Point machine for movable frogs
US20120068022A1 (en) * 2010-09-16 2012-03-22 Chadda Iqbal Mechanical lock
US8684318B2 (en) * 2010-09-16 2014-04-01 Spx International Limited Mechanical lock
US20180346002A1 (en) * 2015-11-24 2018-12-06 Siemens Ltd. Point machine and switch with snap-action and method of operating said point machine
US10850752B2 (en) * 2015-11-24 2020-12-01 Siemens Mobility Pty Ltd. Point machine and switch with snap-action and method of operating said point machine

Also Published As

Publication number Publication date
ATE355215T1 (de) 2006-03-15
CZ293468B6 (cs) 2004-05-12
WO2002055361A1 (de) 2002-07-18
CN1484594A (zh) 2004-03-24
DE50209584D1 (de) 2007-04-12
US20040069911A1 (en) 2004-04-15
CN1250418C (zh) 2006-04-12
CA2434392A1 (en) 2002-07-18
EP1349764B1 (de) 2007-02-28
JP3862656B2 (ja) 2006-12-27
AT411047B (de) 2003-09-25
CZ20031852A3 (cs) 2003-11-12
CA2434392C (en) 2009-04-07
PT1349764E (pt) 2007-06-05
DK1349764T3 (da) 2007-07-02
ATA392001A (de) 2003-02-15
PL368074A1 (en) 2005-03-21
EP1349764A1 (de) 2003-10-08
BR0206359A (pt) 2003-12-23
ES2282402T3 (es) 2007-10-16
JP2004516994A (ja) 2004-06-10
HUP0401164A2 (en) 2004-10-28
PL201090B1 (pl) 2009-03-31

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